File name VCR Sony SLV-777HF.pdfSLV-777HF/778HF/788HF
MA-327 (REC/PB AMP) SCHEMATIC DIAGRAM -- Ref. No.: MA-327 Board; 1,000 Series --
MA-327 BOARD
MA-327 BOARD
CJ570 CN101 CN102 CN103 CN104 CN105 CN161 CN260 CN261 CN301 CN302 CN341 CN423 CN602 CN603 CNJ980 CNJ981 D103 D109 D161 D162 D370 D379 D521 D560 D561 D611 D612 D614 D702 D980 D981 D982 D983 D984 IC101 IC160 A-3 C-7 E-2 I-4 H-11 J-12 H-11 B-9 B-7 B-4 B-5 C-10 C-12 F-1 H-1 A-2 A-2 F-6 H-3 I-8 I-8 C-10 B-13 D-1 B-3 A-10 J-1 J-1 J-1 F-12 A-2 A-2 B-1 A-1 A-1 I-3 H-9 IC161 IC162 IC201 IC202 IC260 IC301 IC340 IC360 IC521 IC601 IC733 IC980 PH101 PH102 Q101 Q102 Q103 Q201 Q202 Q208 Q209 Q210 Q211 Q212 Q260 Q301 Q331 Q379 Q386 Q387 Q523 Q524 Q525 Q526 Q560 Q603 Q604 Q605 Q606 I-10 I-10 D-5 E-5 B-8 B-5 B-10 B-11 D-1 E-12 H-13 B-1 H-8 H-4 F-1 F-10 F-5 C-3 C-3 D-4 E-4 E-5 D-6 D-2 B-7 C-5 C-6 A-13 A-12 A-12 C-2 C-2 C-1 D-1 B-2 J-3 J-6 I-3 J-2
1 IC260 4 REC
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.)
· For printed wiring boards. · b : Pattern from the side which enables seeing.
1V/Div 0.1µsec/div
2 IC260 #ŗ REC
CN261 1 REC
Caution : Pattern face side: (Conductor Side)
Parts on the pattern face side seen from the pattern face are indicated. Pattern face side: parts on the parts face side seen (Component Side) from the parts face are indicated.
0.5V/Div 0.1µsec/div
3 IC260 @· REC
20mV/Div 0.1µsec/div
4 IC260 @TM PB
200mV/Div 0.1µsec/div
5 IC260 !· REC/PB
H
2.3Vp-p
· For schematic diagrams. · Caution when replacing chip parts. New parts must be attached after removal of chip. Be careful not to heat the minus side of tantalum capacitor, because it is damaged by the heat. · All resistor are in ohms, 1/4W unless otherwise noted. Chip resistor are 1/10W unless otherwise noted. k: 1000, M, : 1000k. · All capacitors are in µF unless otherwise noted. pF : µ µF. 50V or less are not indicated except for electrolytics and tantalums. · C: panel designation. : internal component. · · A: B+ Line. * · B: B Line. * · J : IN/OUT direction of (+,) B LINE. * · Circled numbers refer to waveforms. * · Readings are taken with a color-bar signal input. · Voltage are dc between ground and measurement points.* · Readings are taken with a digital multimeter (DC10M).* · Voltage variations may be noted due to normal production tolerances.*
6 IC260 !¶ REC/PB
CN261 3 REC/PB
When indicating parts by reference number, please include the board name. · * : indicated by the color red.
5Vp-p 30Hz
MA-327 REC/PB AMP, VIDEO, AUDIO, SERVO/SYSTEM CONTROL, TUNER
JK-162 (LINE-2 IN)
FR-138 (MODE CONTROL)
POWER BLOCK DM-80 (OPERATION SWITCHES)
4-5
4-6
4-7
REC/PB AMP
MA-327 (1/8)
SLV-777HF/778HF/788HF
MA-327 (VIDEO, NORMAL AUDIO) SCHEMATIC DIAGRAM -- Ref. No.: MA-327 Board; 1,000 Series -- · See page 4-3 for MA-327 BOARD printed wiring board.
MA-327 BOARD
7 IC201 ! PB
CN261 2 PB
!£ IC201 #· REC/ PB
H 200mV/Div 0.1µsec/div
2Vp-p
8 IC201 !¶ PB
!¢ IC201 |